The servers smuggled by Greg Lui to China contained Nvidia A100 and H100 graphics processing units, which are restricted chips optimized to handle large language models and train artificial intelligence applications

A manufacturer-by-manufacturer overview of the chips, accelerators, and infrastructure powering modern AI systems.

Large language models (LLMs) are advanced AI systems trained on massive text datasets to understand, generate, and reason about human language, powering applications such as chatbots, code generation, summarization, and scientific discovery.